Feel shut out after being "cheated on"

My girlfriend and I live 180 miles away from each other which hasn't been too much of a problem apart from only seeing each other every couple of weeks for the first few months. At the end of last year, whilst I was at a friends funeral my girlfriend got very drunk and got off with and groped a friend of hers who is in a relationship, has a child and is known to get off with girls from time to time. She told me the next day and I took it very badly at first. After thinking about it for a day or so I told her that I could forgive her as I saw it as a drunken mistake and that we meant more to me than her indiscretion. She told me that she saw it as cheating and that if the roles were reversed she would have dumped me for it. I insisted that I could forgive and move on and that was what I wanted to do. 6 months later we were walking down the road and the girl she got off with came out of a doorway not 100 yards from my girlfriends house and waved at us, turns out she lives there (which my girlfriend had never told me). This lead to a bit of a row over why she didn't tell me she lived so close, especially when it transpires my girlfriend had been going round there to see her as a friend. I told my girlfriend that I wanted to meet the couple socially so that I could get to know them and therefore try to put the little indiscretion behind us, I have met the guy on the school run and he seems like a really nice bloke and the only way I can see to be able to fully forgive is to accept them as friends as I am sure it will never happen again and I don't want to make my girlfriend choose between me and them. 5 months since then I still have not met them although my girlfriend has been round there many times and out with them socially a few times too. I feel like I am being shut out which is not helping me get over this, and no matter how many times I ask it never seems to be the right time in my girlfriends eyes to go and meet them. I recently had to go away and work with a female friend and my girlfriend was racked with jealousy even though she knew nothing was going on between us and yet she tells me I'm being unreasonable when I keep leaning on her to arrange a meeting with her friends so that I can begin healing from her indiscretion. She went round to her friends last night and this morning photos were posted of the two of them walking arm in arm smiling and joking (along with the guy and a few friends) and it brought me to writing this post. Am I being unreasonable? Am I trying to rule her life? I don't know any more, does anyone want to give me there view on this?

Regardless of the cheating, I would feel hurt for being excluded from part of her life. People want partners who make them feel included. Adding to that she is seeing someone she fooled around with makes it much harder. It doesn't sound like you are trying to rule her life, just be welcomed and included in a part of her life she has not introduced you to. Are you ready to be a full partner in her life? Distance does make it hard to be full partners and included in everything too.